Accumulator type manual atomizer

Abstract

An accumulator type, rechargeable atomizing spray mechanism having a container for liquid to be atomized, and further having an atomizer body, an atomizer head and an engaging member having a large-diameter hollow cylindrical portion. The atomizer has small and large diameter pistons formed into a piston member. The large diameter hollow cylindrical portion of an engaging member is surrounded by the peripheral wall of the atomizer head and has a rod portion extending downwards from its upper inside portion. Both pistons are respectively inserted into upper large diameter and lower small diameter cylindrical portions of the engaging member and atomizer body. The engaging member has a nozzle opening perforated at its large diameter cylindrical portion, which is normally closed by the large diameter piston of the piston member. A suction valve perforated at the bottom of the lower cylindrical portion of the atomizer body is closable by means of the rod-like valve body of the engaging member. Since the valve bodies are formed as part of the components of the atomizer, this atomizer can eliminate displacement of the ball valve used in conventional atomizers and can also provide an atomizer of simplified construction.

What is claimed is: 
     
       1. A liquid spraying device, comprising: a container having a neck portion;   an atomizer body having a peripheral portion engaged with the neck portion of said container, a radially inwardly extending flange-like upper wall connected to the upper end of the engaging peripheral portion and a main cylindrical portion attached to said upper wall, having a small-diameter, hollow, lower cylindrical portion;   an atomizer head having a nozzle outlet preforated in said atomizer head, said head being slidable with respect to said atomizer body;   an engaging member having a large-diameter cylindrical portion which is held by said atomizer head, and having a rod portion downwardly extending from said large-diameter cylindrical portion, having a rod-lke valve body extending downwardly from said rod portion, said valve body being slidably inserted into the small diameter cylindrical portion of said atomizer bodies;   a piston member having a tubular portion which slidably engages the rod portion of said engaging member and which has a skirt-like small-diameter piston formed at the lower end of said piston member which is surrounded by the lower, small-diameter cylindrical portion of said atomizer body, and which has a skirt-like, large-diameter piston at the upper end of said piston member which is surrounded by the upper, large-diameter portion of said engaging member;   a suction tube which cooperates with the lower portion of the lower small-diameter, hollow cylindrical portion of said atomizer body for intaking liquid from said container; and   spring means for upwardly urging said piston member, said engaging member and said atomizer head;   said atomizer body being provided with a suction valve hole at the inside bottom of the small-diameter cylindrical portion of said atomizer body, said engaging member having a nozzle opening formed in the large-diameter cylindrical portion of said engaging member in fluid communication with said nozzle outlet of said atomizer head, being normally closed by the large-diameter of said piston member; a liquid passage being defined between the outer surface of said engaging member and the inner surface of said piston member for communicating liquid from said container to said nozzle outlet of said atomizer head.   
     
     
       2. A liquid spraying device as claimed in claim 1, wherein said main cylindrical portion of said atomizer body further comprises an upper, large-diameter hollow cylindrical guide portion and a suction tube-engaging hollow cylindrical extending downwardly from the lower end of the lower, small-diameter cylindrical of said atomizer body. 
     
     
       3. A liquid spraying device as claimed in claim 1, wherein said suction hole is located at the upper end of a hollow cylindrical portion which extends upwardly from and is located radially inwardly from the small-diameter lower cylindrical portion of said atomizer body. 
     
     
       4. A liquid spraying device as claimed in claim 1 or 2, wherein the main cylindrical portion of said atomizer body further comprises a first longitudinal annular recess formed in the lower portion of said lower cylindrical portion of said atomizer body, a second annular recess formed in the upper portion of said main cylindrical portion of said atomizer body and a hole perforated at the junction between the upper and lower portions of main cylindrical portion. 
     
     
       5. A liquid spraying device as claimed in claim 1 wherein said engaging member further comprises an exhaust passage provided at the large-diameter cylindrical portion of said engaging member in fluid communication with the nozzle outlet of said atomizer head, being constructed so as to spin liquid which passes through said exhaust passage. 
     
     
       6. A liquid spraying as claimed in claim 1 or 2, wherein said piston member further comprises a skirt-like intermediate-diameter piston disposed between said large-diameter piston and said small-diameter piston and surrounded by the upper portion of said atomizer body. 
     
     
       7. A liquid spraying device comprising: a container for liquid having a neck;   an atomizer body having a peripheral portion which engages the neck portion of said container, having a radially inwardly extending flange-like upper wall connected to the upper end of said peripheral portion, a main cylindrical portion attached to said upper wall, having a lower, small-diameter cylindrical portion which has a suction valve at the bottom of said small diameter cylindrical portion, which includes a suction valve hole and a ball valve;   an atomizer head having a nozzle outlet perforated in said atomizer, said atomizer head being slidable with respect to said atomizer body,   an engaging member having a large-diameter hollow cylindrical portion which is held within said atomizer head, said engaging member having a rod portion extending downwardly from said large-diameter cylindrical portion;   a piston member having a tubular portion which slidably engages said rod portion of said engaging member, having a lower, skirt-like, small-diameter piston and an upper, skirt-like large-diameter piston, said small-diameter piston being surrounded by the small-diameter portion of said atomizer body and said large-diameter piston being surrounded by the large-diameter portion of said engaging member;   a suction tube engaged with the lower most portion of said small-diameter cylindrical portion of said atomizer body for intaking liquid from said container; and   spring means for upwardly urging said piston member, said engaging member and said atomizer head;   said engaging member having a nozzle opening formed in the large-diameter cylindrical portion of said engaging member in fluid communication with the nozzle outlet of said atomizer head, and being normally closed by said large-diameter piston, a liquid passage being defined the outer surface of said engaging member and the inner surface of said piston member for communicating liquid from said container to the nozzle outlet of said atomizer head.